Home / 1,328,557.20-1,992,835.80-903,404.40

Finding the Fourth Proportional to 1,328,557.20, 1,992,835.80 and 903,404.40

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Solution

The fourth proportional to 1,328,557.20, 1,992,835.80 and 903,404.40 is: 1,355,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,557.20 : 1,992,835.80 = 903,404.40 : x
  2. Step 2: Convert to fraction form
    1,328,557.20/1,992,835.80 = 903,404.40/x
  3. Step 3: Cross multiply
    1,328,557.20x = 1,992,835.80 × 903,404.40
  4. Step 4: Simplify right side
    1,328,557.20x = 1,800,336,630,197.52
  5. Step 5: Solve for x
    x = 1,800,336,630,197.52/1,328,557.20
  6. Step 6: Final answer
    x = 1,355,106.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.